I hated English classes in school, never paid attention. Skipped. Failed. It seemed inconsequential at the time. Gaining access to a BBS was a bit of a culture shock. Computers were fascinating but suddenly my peers cared about spelling, grammar... even punctuation (it happened to be a BBS for a local paper, maybe related). So at 15, I felt out of place and committed to thoroughly learning all of the things I'd skipped in school. Not because of snarky responses, corrections, or others’ expectations but because it impacted my ability to communicate - which I don't particularly enjoy but feel is important. Even now, I'm communicating... but it isn't for the sake of making noise or banging on a keyboard, it's about an idea. We communicate to share thoughts and without that mechanism we wouldn't have shared learning which resulted in anything commonly considered "technology" or "machines" today.
My visceral reaction to grammatical errors is the feeling that the person places less of a value on communicating ideas. It isn't about intelligence, it's about values.
Does anyone else feel this way? Am I just a pedantic, judgmental asshole?